diff --git a/core/function-impl/mogo-core-function-hmi/src/main/java/com/mogo/eagle/core/function/hmi/ui/operate/preferences/PreferenceWithSpeedSetting.kt b/core/function-impl/mogo-core-function-hmi/src/main/java/com/mogo/eagle/core/function/hmi/ui/operate/preferences/PreferenceWithSpeedSetting.kt
index b1d0353080..c5bd5d3df5 100644
--- a/core/function-impl/mogo-core-function-hmi/src/main/java/com/mogo/eagle/core/function/hmi/ui/operate/preferences/PreferenceWithSpeedSetting.kt
+++ b/core/function-impl/mogo-core-function-hmi/src/main/java/com/mogo/eagle/core/function/hmi/ui/operate/preferences/PreferenceWithSpeedSetting.kt
@@ -6,6 +6,7 @@ import android.text.Editable
 import android.util.AttributeSet
 import android.widget.EditText
 import android.widget.TextView
+import androidx.core.widget.doAfterTextChanged
 import androidx.core.widget.doBeforeTextChanged
 import androidx.core.widget.doOnTextChanged
 import androidx.preference.Preference
@@ -13,6 +14,7 @@ import androidx.preference.PreferenceViewHolder
 import com.mogo.eagle.core.function.hmi.R
 import com.mogo.eagle.core.utilcode.kotlin.onClick
 import com.mogo.eagle.core.utilcode.kotlin.onClickWidthDuration
+import com.mogo.eagle.core.utilcode.mogo.logger.Logger
 import com.mogo.eagle.core.utilcode.util.ToastUtils
 import java.math.BigDecimal
 import java.util.concurrent.ConcurrentHashMap
@@ -70,20 +72,32 @@ class PreferenceWithSpeedSetting : Preference {
         speedUnit?.text = unit
         val speedLimit = holder.findViewById(R.id.tv_speed_limit) as? TextView
         if (cache.containsKey(key)) {
-            cur = max(cur, cache[key] ?: 0.0)
+            cur = cache[key] ?: cur
         }
+        cur = BigDecimal.valueOf(cur).setScale(1).toDouble()
         if (speedLimit is EditText) {
             speedLimit.setText(cur.toString())
-            speedLimit.doOnTextChanged { text, _, _, _ ->
+            speedLimit.doAfterTextChanged { text ->
                 val current = text?.let { runCatching { it.toString().toDouble() }.getOrNull() }
                 if (current == null) {
-                    return@doOnTextChanged
+                    btnOk.isEnabled = false
+                    holder.itemView.isEnabled =  false
+                    ll.isSelected = false
+                    return@doAfterTextChanged
                 }
                 if (current > max) {
+                    btnOk.isEnabled = false
+                    holder.itemView.isEnabled =  false
+                    ll.isSelected = false
                     ToastUtils.showShort("阈值最大为${BigDecimal.valueOf(max).setScale(1)}$unit")
-                    return@doOnTextChanged
+                    return@doAfterTextChanged
                 }
-                cur = current
+                val temp = BigDecimal.valueOf(current).setScale(1).toDouble()
+                if (cur == temp) {
+                    return@doAfterTextChanged
+                }
+                Logger.d("RWJ", "--- cache ---- 2 ---: $cur, $temp")
+                cur = temp
                 btnOk.isEnabled = true
                 ll.isSelected = true
                 cache[key] = cur
@@ -131,7 +145,6 @@ class PreferenceWithSpeedSetting : Preference {
             btnOk.isEnabled = true
             enabled[key] = true
             if (speedLimit is EditText) {
-                speedLimit.setText("")
                 speedLimit.setText(addAfter.toString())
             } else {
                 speedLimit?.text = addAfter.toString()
@@ -141,7 +154,6 @@ class PreferenceWithSpeedSetting : Preference {
         btnOk.onClick {
             onPreferenceClickListener?.also {
                 enabled[key] = false
-                cache.remove(key)
                 extras.putDouble(KEY_BUNDLE_CURRENT_VALUE, cur)
                 it.onPreferenceClick(this)
             }